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Keywords: compression
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eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7727-7
... The flatjack deformability testing described in ASTM C1197 has been used effectively for over 25 years to evaluate compressive stiffness and strength of in situ masonry assemblies. The test method is used most frequently at historic masonry structures where the mechanical properties...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7712-3
... different when strained in shear or tension compared with in compression. Tensile adhesion joints were studied in compression and modeled using finite element software to illustrate how well predicted stress-strain behavior aligns with actual behavior. Deformation of the sample was also shown...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2021
ISBN: 978-0-8031-7718-5
... curing time, the structural integrity of 3D-printed concrete decreased with variations in the layer print time of a single object, affecting the entire infrastructure. additive construction temporal analysis concrete forecasting time series structural compression 3D printing STANDARDS...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2009
ISBN: 978-0-8031-3416-4
... Compression precracking has been used in a renewed effort to generate fatigue-crack growth rates in the threshold and near-threshold regimes, as an alternative to the traditional load-reduction procedure. But concerns have been expressed on the influence of tensile residual stresses resulting...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3479-7
ISBN: 978-0-8031-3479-9
... and enhanced as needed. Spectrum editing methods based on closure behavior were developed to reduce both computational and experimental time. FASTRAN was modified to address apparent differences in closure behavior between the surface and bore tips for compression-dominated spectra. Strip yield models...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2004
ISBN-10: 0-8031-3480-0
ISBN: 978-0-8031-3480-5
... that account for the effects of sealant aging in FEA modeling. Uniaxial stress relaxation testing was conducted on six commercially available silicone structural glazing, insulating glazing, and weatherproofing sealants in tension and in compression at temperatures of -20°C, 22°C, and 80°C. Testing was carried...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... The damage resistance of pultruded composites to quasi-static transverse indentation is characterized, and the damage tolerance of transversely indented composites under subsequent compression is assessed. Two specimen thicknesses are investigated. In each case four specimens are transversely...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... parameters associated with three-stringer stiffened-panel compressive behavior. During recent research and development programs, four structural parameters were identified as sources for strength variation: ( a ) material system, ( b ) stringer configuration, ( c ) skin layup, and ( d ) form of axial...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... Open hole compression (OHC) design criteria often size the thicknesses of composite aircraft skin structures. Therefore, there can be a significant payoff in improving OHC allowables through better characterization of OHC strength and behavior. This study, using progressive damage analysis...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... investigation shows that the specimens did not buckle and that the mode of failure is a compressive material failure in the gage section of the tube. composite materials compression tubes experimental evaluation graphite-epoxy Ronald B. Bucinell 1 and Brian Roy 1 Development of a Test Method...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2855-X
ISBN: 978-0-8031-2855-2
... Creep or secondary compression plays an important role in the deformation behavior of soft soils like peat and organic clay. For the determination of long term settlements several methods have been proposed and implemented in codes for the engineering practice. However, some of the methods used...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2601-8
ISBN: 978-0-8031-2601-5
... An experimental study was undertaken to compare the effects of physical aging on the viscoelastic behavior of IM7/K3B [90] 12 composite and the K3B neat resin loaded in tension and compression. The tests, run over a range of sub-glass transition temperatures, provided material constants...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2870-3
ISBN: 978-0-8031-2870-5
... Proper in vitro mechanical testing of medical devices requires consideration of many factors, including environmental conditions, implant characteristics, and nature of the test method. In this study, parallel plate compression testing of porous specimens composed of 75:25 poly(D,L-lactide-co...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2477-5
ISBN: 978-0-8031-2477-6
... The engineering and material properties of controlled low-strength material (CLSM) can be altered through the use of air-modifying additives, thereby broadening potential end-uses for CLSM. Air-modified low-water content CLSM retains the compressibility, shear, load-bearing, and flowability...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2039-7
ISBN: 978-0-8031-2039-6
... An investigation was undertaken to study the inelastic deformation mechanisms in [0] 8 and [90] 8 Ti 15-3/SCS-6 lamina subjected to pure compression. Monotonic tests were conducted at room temperature (RT), 538°C, and 650°C. Results indicate that mechanical response and deformation...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2044-3
ISBN: 978-0-8031-2044-0
... One-component polyurethane sealant specimens were cast between sections of aluminum substrate, cured at standard conditions for 21 days and then subjected to deformations ranging from 50% compression to 75% extension. Specimens were divided into three groups: one group remained at standard...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-2012-5
ISBN: 978-0-8031-2012-9
... In a typical new material development scenario, scaleup must occur prior to obtaining meaningful results with respect to compression. This is necessitated by the need to have enough material to manufacture the large quantities required for typical compression testing. A new test for compression...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1864-3
ISBN: 978-0-8031-1864-5
.... silicon nitride creep tension compression bending flexure neutral axis cracking stiffness Jonathan A. Salem I and Sung R. Choi 2 CREEP BEHAVIOR OF SILICON NITRIDE DETERMINED FROM CURVATURE AND NEUTRAL AXIS SHIFT MEASUREMENTS IN FLEXURE TESTS REFERENCE: Salem, J. A. and Choi, S. R., "Creep...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1499-0
ISBN: 978-0-8031-1499-9
...) in a standard displacement-based isoparametric 3-D or thick-shell finite element. This integrated approach allows the use of micromechanics-based criteria for detection of failure, including compression kink banding, in the analysis of a composite structure or structural component. A nonlinear elastic power-law...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1499-0
ISBN: 978-0-8031-1499-9
... conclusions are drawn as to the preferred plug contour for reducing the end effect. composite materials thick composites filament wound composites pressure vessels cylindrical shells laminates analyzing compression hydrostatic pressure orthotropic elasticity shear deflection bending stresses...